The detection of point mutation at 12th codon of oncogene c-Ha-ras from stomach cancer and mucous coat nearby the solid tumor 胃癌和癌旁组织癌基因cHaras第12位密码点突变测定的研究
Objective To observe the influence of berberine on vasoactive substances of gastric mucous coat, including nitric oxide ( NO), nitric oxide synthase ( NOS) and endothelin ( ET) in mice with gastric ulcer. 目的观察小檗碱对胃溃疡小鼠胃黏膜血管活性物质一氧化氮(NO),一氧化氮合酶(NOS)以及内皮素(ET)含量的影响。